Fix 32-bit bug.
Fix 32-bit bug.

artillery/capnproto,mrdomino/capnproto,bsn069/capnproto,hntrmrrs/capnproto,bryce-gibson/capnproto,geofft/capnproto,Fraser999/capnproto,modulexcite/capnproto,maurer/capnproto,joliss/capnproto,ligzy/capnproto,ocdtrekkie/capnproto,khklau/capnproto,bsn069/capnproto,rcrowder/capnproto,ocdtrekkie/capnproto,joliss/capnproto,bryce-gibson/capnproto,jparyani/capnproto,pjulien/capnproto,zarvox/capnproto,martindale/capnproto,johnkdoe/capnproto,kamalmarhubi/capnproto,modulexcite/capnproto,a-richardson/capnproto,pjulien/capnproto,pjulien/capnproto,kamalmarhubi/capnproto,hntrmrrs/capnproto,mologie/capnproto,rcrowder/capnproto,khklau/capnproto,a-richardson/capnproto,artillery/capnproto,hntrmrrs/capnproto,jparyani/capnproto,nagyistoce/capnproto,geofft/capnproto,Fraser999/capnproto,mrdomino/capnproto,martindale/capnproto,zarvox/capnproto,kamalmarhubi/capnproto,bryce-gibson/capnproto,rcrowder/capnproto,mologie/capnproto,vladon/capnproto,zarvox/capnproto,martindale/capnproto,modulexcite/capnproto,MarPiRK/capnproto,nagyistoce/capnproto,maurer/capnproto,Fraser999/capnproto,artillery/capnproto,MarPiRK/capnproto,vladon/capnproto,ligzy/capnproto,johnkdoe/capnproto,maurer/capnproto,ligzy/capnproto,ocdtrekkie/capnproto,joliss/capnproto,vladon/capnproto,mologie/capnproto,mrdomino/capnproto,bsn069/capnproto,johnkdoe/capnproto,khklau/capnproto,MarPiRK/capnproto,geofft/capnproto,jparyani/capnproto,a-richardson/capnproto,nagyistoce/capnproto